fix: add @solana/web3.js dep; revert webpack fallback

app/next.config.ts

@@ -3,17 +3,6 @@ import type { NextConfig } from 'next'
 const config: NextConfig = {
   reactStrictMode: true,
   transpilePackages: ['@solana/connector'],
-  // @solana/connector bundles a web3.js v1 compat layer for legacy wallets.
-  // We never pass web3.js Transaction objects (we use @solana/kit / Uint8Array),
-  // so this code path is dead. Stub the module so webpack doesn't error at build
-  // time when it can't resolve the optional dynamic import('@solana/web3.js').
-  webpack: (webpackConfig) => {
-    webpackConfig.resolve.fallback = {
-      ...webpackConfig.resolve.fallback,
-      '@solana/web3.js': false,
-    }
-    return webpackConfig
-  },
 }
 
 export default config

app/package.json

@@ -12,6 +12,7 @@
     "@descro/sdk": "file:../../descro/sdk",
     "@solana/connector": "^0.2.4",
     "@solana/kit": "^6.10.0",
+    "@solana/web3.js": "^1.0.0",
     "@solisting/sdk": "workspace:*",
     "@tanstack/react-query": "^5.101.1",
     "class-variance-authority": "^0.7.1",